Look game developers, sometimes you just want some mindless distraction, sometimes you want to learn the levels before ramping up the difficulty, sometimes you want to play with friends that don't have elite skills, and the ability to adjust the difficulty allows for this. After the big budget Romero turd I vowed never to waste another dime on zombie DLC. Resent maps I've never fully seen, and never mind following the story. Maps were easily explored without hours and hours of game play.
Zombie maps from World at War were easily playable solo, making the even more fun co-op.
Making so much content vitally unplayable solo is equally stupid. In this day and age, leaving out the ability to adjust the difficulty is moronic. I only have one complain, zombies are not for the casual gamer. In this day and age, Zombies were a fun idea, but early on went off the rails.
Zombies were a fun idea, but early on went off the rails.